@misc{Glensk_Barbara_Portfolio,
 author={Glensk, Barbara and Ganczarek-Gamrot, Alicja and Trzpiot, Grażyna},
 howpublished={online},
 publisher={Publishing House of the University of Economics in Katowice},
 language={eng},
 type={artykuł},
 title={Portfolio analysis on Polish Power Exchange and European Energy Exchange},
 keywords={Conditional Value at Risk, electric energy spotmarkets, portfolio analysis},
}